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We report a new mechanism for nucleation in a monolayer of hexagonally packed monodisperse droplet arrays. Upon cooling, we observe solidified droplets to nucleate their supercooled neighbors giving rise to an autocatalytic-like mechanism…

Soft Condensed Matter · Physics 2020-04-01 Samira Abedi , Chau-Chyun Chen , Siva A. Vanapalli

Modifications of photoionization arising from resonant electron-electron correlations between neighbouring atoms in an atomic sample are studied. The sample contains atomic species A and B, with the ionization potential of A being smaller…

Atomic Physics · Physics 2015-06-04 B. Najjari , C. Müller , A. B. Voitkiv

An elementary excitation in an aggregate of coupled particles generates a collective excited state. We show that the dynamics of these excitations can be controlled by applying a transient external potential which modifies the phase of the…

Quantum Physics · Physics 2013-06-14 Ping Xiang , Marina Litinskaya , Evgeny A. Shapiro , Roman V. Krems

We show that a nonchiral atom can act as an antenna to induce a photoelectron circular dichroism in a nearby chiral molecule in a three-step process: The donor atom (antenna) is initially resonantly excited by circularly polarized…

Atomic and Molecular Clusters · Physics 2025-05-14 Stefan Yoshi Buhmann , Andreas Hans , Janine C. Franz , Philipp V. Demekhin

Clusters of galaxies generally form by the gravitational merger of smaller clusters and groups. Mergers drive shocks in the intracluster gas which heat the intracluster gas. Mergers disrupt cluster cooling cores. Mergers produce large,…

Astrophysics · Physics 2007-05-23 Craig L. Sarazin

The structure and dynamics of an n-particle system are described with coupled nonlinear Heisenberg's commutator equations where the nonlinear terms are generated by the two-body interaction that excites the reference vacuum via…

High Energy Physics - Theory · Physics 2016-09-06 M Tomaselli , L. C. Liu , T. Kuehl , W. Noertershaeuser , D. Ursescu , S. Fritzsche

We study alchemical atomic energy partitioning as a method to estimate atomisation energies from atomic contributions which are defined in physically rigorous and general ways through use of the uniform electron gas as a joint reference. We…

The excited conduction electrons, conduction holes and valence holes in monolayer germanene exhibit the feature-rich Coulomb decay rates. The dexcitation processes are studied using the Matsubara's screened exchange energy. They might…

Materials Science · Physics 2018-05-09 Po-Hsin Shih , Chih-Wei Chiu , Jhao-Ying Wu , Thi-Nga Do , Ming-Fa Lin

The three-nucleon bound and scattering equations are solved in momentum space for a coupled-channel Hamiltonian. The Hamiltonian couples the purely nucleonic sector of Hilbert space with a sector in which one nucleon is excited to a…

Nuclear Theory · Physics 2022-09-13 A. Deltuva , P. U. Sauer

The ground-state electronic configuration of three coupled bidimensional electron gases has been determined using a variational Hartree-Fock approach, at zero magnetic field. The layers are Coulomb coupled, and tunneling is present between…

Mesoscale and Nanoscale Physics · Physics 2016-07-28 D. Miravet , C. R. Proetto , P. G. Bolcatto

The hot, X-ray-emitting intracluster medium (ICM) is the dominant baryonic constituent of clusters of galaxies. In the cores of many clusters, radiative energy losses from the ICM occur on timescales significantly shorter than the age of…

X-ray photoelectron spectroscopy (XPS) and KLL Auger spectra of aqueous KCl solution were measured for the K$^+$ and Cl$^-$ edges. While the XPS spectra of potassium and chloride have similar structures, both exhibiting only weak satellite…

The processes of Coulomb gas ordering in 3D layered system are studied by means of Brownian dynamics approach. It is found that at different densities of the carriers the 3D lattice of charges as well as new specific structures are possible…

Strongly Correlated Electrons · Physics 2007-05-23 Yu. G. Pashkevich , A. E. Filippov

Shallow hole-doping in small diameter single-wall carbon nanotubes by H$_2$O$_2$ is shown to result in delocalized excited state quenching with no effects on the ground state absorption spectrum. To account for this process, the…

Mesoscale and Nanoscale Physics · Physics 2015-03-19 Jay D. Sau , Jared J. Crochet , Miguel Dimas , Juan G. Duque , Marvin L. Cohen , Stephen K. Doorn

Nuclear mass data provide EMPIRICAL evidence of: 1. Clustering of nucleons; 2. Attractive n-p interactions; and 3. Repulsive but symmetric n-n and p-p interactions after correcting for the repulsive Coulomb interactions between positive…

Nuclear Theory · Physics 2007-05-23 O. Manuel

Anderson localization1 in a random system is sensitive to a distance dependence of the excitation transfer amplitude V(r). If V(r) decreases with the distance r slower than 1/r^d in a d-dimensional system then all excitations are…

Disordered Systems and Neural Networks · Physics 2007-05-23 Alexander L. Burin

We identify a new mechanism for cooperative emission of light by an ensemble of N dipoles near a metal nanostructure supporting a surface plasmon.The cross-talk between emitters due to virtual plasmon exchange leads to a formation of three…

Materials Science · Physics 2015-05-13 Vitaliy N. Pustovit , Tigran V. Shahbazyan

We show that nuclear motion of Rydberg atoms can be induced by resonant dipole-dipole interactions that trigger the energy transfer between two energetically close Rydberg states. How and if the atoms move depends on their initial…

Atomic Physics · Physics 2009-11-13 C. Ates , A. Eisfeld , J. M. Rost

We study the energy transfer in a classical dipole chain of $N$ interacting rigid rotating dipoles. The underlying high--dimensional potential energy landscape is analyzed in particular by determining the equilibrium points and their…

Chaotic Dynamics · Physics 2018-08-15 Alexandra Zampetaki , J. Pablo Salas , Peter Schmelcher

The predominant reason for the damaging power of high-energy radiation is multiple ionization of a molecule, either direct or via the decay of highly excited intermediates, as e.g., in the case of X-ray irradiation. Consequently, the…